Monarch butterflies store toxic chemicals from milkweed in their bodies during their larval stage, making them unpalatable to predators even as adults.
Monarch butterflies obtain toxic chemicals from milkweed plants that they feed on during their larval stage. These chemicals, known as cardiac glycosides, are stored in the butterfly's body and make them unpalatable to predators. Even as adults, Monarch butterflies retain these toxins due to their consumption during the larval stage, despite not consuming milkweed as adults.
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